I recently bought a Nexus7 tablet and I'm currently working on integrating into my dashboard, but for now I can't just have my tablet floating around in an insecure fashion and risk something happening to it prematurely. I like to take my time when custom-building, but at the same time I find myself unable to get produce a permanent solution just yet.
NOTE: This tutorial is regarding a super cheap route I took to "temporarily" mount my Nexus7. Doing it this way, while is cost effective and fast, is not what you would want to do if you're looking to show off or flaunt... unless you just don't care [as I kind of don't]. Enjoy the video to see what i'm talking about.
Step 1: Minimal cutting + minimal tools = maximum efficiency
Swiss Army Knife
You're dealing with a cardboard box, so you're not looking to change out of your church clothes for this one.
FIRST- The box has a middle section (smaller box) that is removable, which is where the charging cable, owner's manual, and headphones would be located. Take that section out.
SECOND- take your knife and make 4 simple punctures (cuts) on the on the bottom and back panel of your box [relative to the dashboard] where you'll be sticking in the zip-ties.
THIRD- Slide your zip-ties in, but don't close the ties until you've dry fitted the box onto your space. You'll see why in the next step.